Large Anomalous Hall Conductivity Derived from an f-Electron Collinear Antiferromagnetic Structure.

Appropriate symmetry breaking generates an anomalous Hall (AH) effect, even in antiferromagnetic (AFM) materials. Itinerant magnets with d electrons are typical examples that show a significant response. By contrast, the process by which a response emerges from f-electron AFM structures remains unclear.

Propensity score-matched analysis of the short-term outcomes of robotic versus laparoscopic surgery for rectal cancer.

Purpose: The advantages of robot-assisted rectal surgery (RARS) over conventional laparoscope-assisted rectal surgery (LARS) remain controversial. This study was performed to compare the short-term outcomes of RARS and LARS.

Methods: We retrospectively analyzed data of 207 patients who had undergone either RARS (n = 97) or LARS (n = 110) for rectal cancer (RC) from 2018 to 2020.

[A case report of tuberculous peritonitis in rectal cancer diagnosed by staging laparoscopy and post-treatment status at laparoscopic low-anterior resection].

An 87-year-old woman was referred to our hospital with early rectal cancer and massive ascites. Tuberculous peritonitis was suspected because positron emission tomography-computed tomography showed high uptake in the hypertrophic peritoneum. A staging laparoscopy was performed and the diagnosis of tuberculous peritonitis was established from inspection of histopathological biopsy specimens showing tiny white nodules on the peritoneum, Langhans giant cells, and epithelioid cell granulomas.

Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide.

In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface. Deviations from the conventional behaviour, for example, the observation of a linear magnetoresistance, or a non-saturating magnetoresistance, have been attributed to exotic electron scattering mechanisms. Recently, linear magnetoresistance has been observed in many Dirac materials, in which the electron-electron correlation is relatively weak.